Fibromyalgia is a common chronic pain syndrome characterized by bad treatable chronic widespread pain present at a similar level for at least 3 months. The aim of this study is to examine if 3 weeks of transcranial direct current stimulation is a suitable therapy to reduce chronic pain.

Patients who have an established diagnosis of fibromyalgia according to the 1990 criteria of the "American College of Rheumatology"

Symptoms have been present at a similar level for at least 3 months

Stable medication for at least 2 months

visual analog scale ≥ 3 (0=no pain; 10=worst possible pain)

The patient does not have a disorder that would otherwise explain the pain

Exclusion Criteria:

Alcohol/substance abuse

Pregnancy

Neuropsychiatric disorders

Metal implants near stimulation area

Cardiac pace maker

Local injuries

Inflammatory rheumatic disease

Acute tumor

Acute fracture

Well-defined neuropathic induced pain

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01261650